CVE-2022-39339

user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings).

• CWE-319
• CWE-319

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgPatch, Third Party Advisory
• https://github.com/nextcloud/user_oidc/pull/495Patch, Third Party Advisory
• https://hackerone.com/reports/1687005Permissions Required, Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgPatch, Third Party Advisory
• https://github.com/nextcloud/user_oidc/pull/495Patch, Third Party Advisory
• https://hackerone.com/reports/1687005Permissions Required, Third Party Advisory

Published

Nov 25, 2022

Last Modified

Jun 17, 2026

Status

Modified

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